Fiber reactive polyazo dye having two vinylsulfone type reactive groups through triazinyl bridging group

Claim 1

A polyazo compound of the following formula (I), ##STR381## wherein R 1 , R 2 and R 3 independently of one another are each hydrogen or C 1-4 alkyl, B 1 and B 2 independently of one another are each phenylene unsubstituted or substituted once or twice by methyl, methoxy, ethyl, ethoxy, nitro, sulfo, carboxy, chloro or bromo or naphthylene unsubstituted or substituted once by sulfo, and Y 1 and Y 2 independently of one another are each --CH═CH 2 or --CH 2 CH 2 L in which L is a group capable of being split by the action of an alkali, and F is a polyazo dye moiety selected from the group consisting of those represented by the following formulas (1), (2), (3) and (4) each in free acid form, the formula (1) being ##STR382## wherein R 4 is hydrogen, chloro, methyl, methoxy, ethyl, ethoxy, nitro or carboxy, R 5 is hydrogen, methyl, methoxy, ethyl, ethoxy or sulfo, R 6 is hydrogen, methyl, methoxy, ethyl, ethoxy, acetylamino, ureido or sulfo, m is 1,2 or 3and n is 0 or 1, the formula (2) being ##STR383## wherein R 7 is hydrogen, methyl, methoxy, ethyl, ethoxy, chloro, carboxy or sulfo, R 8 and R 9 independently of one another are each hydrogen, methyl, methoxy, ethyl, ethoxy, chloro, bromo, acetylamino, sulfamoyl or carbamoyl and p and q independently of one another are each 0, 1 or 2, r is 0 or 1, the formula (3) being ##STR384## wherein R 11 is hydrogen, chloro, C 1-4 alkyl, C 1-4 alkoxy, nitro or carboxy, R 12 and R 14 independently of one another are each hydrogen, C 1-4 alkyl, C 1-4 alkoxy or sulfo, R 13 and R 15 independently of one another are each hydrogen, C 1-4 alkyl, C 1-4 alkoxy, C 2-5 alkanoylamino, benzoylamino, ureido or sulfo, t is 1,2 or 3 and u is 0 or 1, and the formula (4) being A--N═N-13 D--N═N--E-- (4) wherein A is sulfonaphthyl or sulfophenyl represented by the following formulas (a) and (b) each in free acid form, respectively, ##STR385## wherein R 16 is hydrogen, C 1-4 alkyl or C 1-4 alkoxy, w is 2 or 3 and x is 1 or 2, D is sulfonaphthylene or phenylene represented by the following formulas (c) and (d) each in free acid form, respectively, ##STR386## wherein the linkage marked by * and ** bond to A--N═N-- and --N═N--E--, respectively, R 17 is hydrogen, methoxy or sulfo, R 18 is hydrogen, C 1-4 alkyl, C 1-4 alkoxy or sulfo, R 19 is hydrogen, C 1-4 alkyl, C 1-4 alkoxy, C 2-5 alkanoylamino, benzoylamino, ureido or C 1-4 alkylsulfonylamino, and E is sulfonaphthylene or phenylene represented by the following formulas (e) and (f) each in free acid form, respectively, ##STR387## where the linkage marked by *** and **** bond to the azo and ##STR388## respectively, R 20 is hydrogen, C 1-4 alkyl, C 1-4 alkoxy or sulfo, and R 21 is hydrogen, C 1-4 alkyl, C 1-4 alkoxy, C 2-5 alkanoylamino, benzoylamino, ureido or C 1-4 alkylsulfonylamino, provided that at least two of A, D and E are the sulfonaphthyl or sulfonaphthylene represented by the formulas (a), (c) and (e).